Our father Abraham is called ha-ivri (הָעִבְרִי) – “the Hebrew,” a term that means “one who has crossed over” (עָבַר) from another place (Gen. 14:13). The famous medieval Torah commentator Rashi literally identified this “other place” as Ur Kasdim (אוּר כַּשְׂדִים), located east of the Euphrates River, though the midrash (Genesis Rabbah) spiritually identified it as the realm of idolatry: “The whole world stood on one side, but Abram crossed over to the other.” Abram separated himself from a world steeped in idolatry and polytheism by worshipping One God who is the sole Creator of all things…. Understood in this way, being “Hebrew” means being regarded as an “other,” a “stranger,” or an “outsider” to idolatrous worldly culture. Therefore all those who “cross over” from the realm of death to life because of Yeshua are rightly called “Hebrews” (John 5:24).
The term “Jew,” on the other hand, refers to one who praises the LORD (יְהוּדָה). The word (יְהוּדִי) comes from a root (יָדָה) which means to “confess” or to “praise” God (Gen. 29:35). The Apostle Paul alluded to this by saying that one whose heart has been circumcised by the Spirit is “one who is praised by God — not by men” (Rom. 2:29). Being a Jew therefore means you are “chosen” to receive blessings and grace to live in holiness for the glory of God and for the healing of the world. The performance of various mitzvot are for the greater purpose of tikkun olam, the “repair of the world,” in order to reveal God’s goodness and love (Eph. 2:8-10). Doing so makes someone a Jew, since his praise comes not from man, but from the LORD. God is the source and the power of what makes a true tzaddik (righteous person). After all, Israel was meant to be a “light to the nations” (Isa. 42:6; 60:3), and God had always planned for all the families of the earth to come to know Him and give Him glory through his chosen servant Abraham (see Gen. 12:3; 22:18). “Jewishness” is therefore not an end in itself but rather a means to bring healing to the nations… Indeed, the entire redemptive story of the Scriptures centers on the cosmic conflict to deliver humanity from the “curse” by means of the “Seed of the woman” who would come. The gospel is Jewish because it concerns God’s great redemptive plan for the whole world (John 3:16; 4:22).
“If a person vows a vow (i.e., neder: נֶדֶר) to the LORD, or swears an oath (i.e., shevuah: שְׁבוּעָה) to bind himself by a pledge, he shall not break his word. He shall do according to all that proceeds out of his mouth” (Num. 30:2). The Hebrew expression “break his word” literally means “profane his word” (יַחֵל דְּבָרוֹ), that is, to defile the soul by causing it to be inwardly divided, irresolute, and cowardly. After all, breaking your word means violating the integrity of who you are, showing that what you say and what you do are not unified, and this leads to feelings of shame. Your words confess your reality and bring it to life… If you cannot keep your word, your word becomes profane, empty, lost — you become a “stranger to yourself,” unsure of what you intend. “Let your “yes” be yes and your “no” be no; learn to say what you mean and mean what you say (Matt. 5:37).
The Hebrew word “spirit” (i.e., ruach: רוּחַ) points to wonder, to something extraordinary and beyond our expectation, that is, to the mysterious Divine Presence that pervades all things yet rises above all things. Yeshua likened the ruach with the inscrutable motions of the wind. He said, “The wind blows where it wishes, and you hear its sound, but you do not know where it comes from or where it goes. So it is with everyone who is born of the Spirit” (John 3:8). We see the effects of the wind, but not the wind itself, which illustrates that the wind surrounds us yet is ultimately beyond our grasp and control. To be “born of the Spirit” is therefore a mysterious intervention from heaven (John 1:13), just as being “led by the Spirit” implies seeing differently, that is, apprehending the Divine Presence in the mysterious motions of life.
From our Torah portion this week (i.e., 
“Speak to the children of Israel, and say unto them, ‘When ye are passed over into the land of promise… drive away all the inhabitants of the land before you; destroy all their carved images, all their molten images, and demolish their high places’” (Num. 33:51-52). The Hebrew word for idolatry is “avodah zarah” (עֲבוֹדָה זַרָה), which literally means strange or “foreign” worship… The worship of anything other than the true God, whether it is pleasure, money, fame, control, security, self-improvement, health, religion, etc., is regarded as foreign, since it alienates us from the truth of reality. We were created to be in relationship with God but we lose sight of this truth whenever elevate what is finite to the status of the infinite. Indeed idolatry is the substitution of not-god (לא־אֵל) for the sacred, absolutizing the present and worshiping the temporal. Since our greatest good is found in the eternal verities of the divine communion, the Lord cannot give us an absolute good apart from Him, since there literally is no such thing. “No one can serve two masters,” Yeshua said, and “a divided house cannot stand.” For our own good, then, God necessarily is the Ultimate Concern of our life, and he wants to spare us the pain, disappointment, and trauma of being double-minded, disintegrated, and full of inner conflict. Spiritual warfare therefore means taking every thought captive before the bar of God’s truth, rooting out and destroying all our inner idols so that we can be delivered from the anguish of uncertainty and ambivalence.